Pharmaceutical Packaging and the Contribution of Thermoformers
November 1, 2023
Thermal transfer printing is a remarkable digital printing method that has revolutionized the way we create high-quality prints on various materials. Unlike direct thermal printing, which relies on heat-sensitive surfaces, thermal transfer printing offers durability and versatility, making it the preferred choice for a wide range of applications. In this article, we’ll delve into the intricacies of thermal transfer printing, its components, and its extensive utility in creating identification labels and barcodes.
At its core, this printing involves the application of material to paper or other surfaces by melting a coated ribbon. This melted ribbon adheres to the material, creating a permanent print. This method surpasses direct thermal printing, especially when dealing with heat-sensitive substrates or when durability against high temperatures is a critical factor.
Thermal transfer printing utilizes three key components, each playing a pivotal role in the printing process:
Non-Movable Print Head: The heart of a specialized thermal transfer printer is its non-movable print head. This print head is responsible for precisely heating specific elements to create the desired images, text, or barcodes.
Carbon Ribbon (Ink): A carbon ribbon, coated with wax or resin-based ink, is crucial to the thermal transfer process. This ribbon passes over the heated print head, where the ink is melted and then transferred onto the substrate.
Substrate: The substrate refers to the material on which the print is applied. Thermal transfer printing is exceptionally versatile, accommodating a wide range of substrates, including paper, synthetics, cardstock, and textile materials.
Print heads for these printers come in various resolution options, including 203 dpi, 300 dpi, and 600 dpi. Each dot on the print head is independently addressed, allowing for precise and detailed prints. When a dot is electronically addressed, it immediately heats up to a pre-set and adjustable temperature. This heat causes the wax- or resin-based ink on the ribbon film to melt. The constant pressure applied by the print head’s locking mechanism ensures the immediate transfer of ink onto the substrate.
This type of printing printing has widespread use in a variety of applications, thanks to its exceptional print quality and durability. Some notable applications include:
Identification Labels: It is the go-to choice for creating high-quality identification labels. Whether it’s for product labelling, asset tagging, or equipment identification, the durability and longevity of thermal transfer prints make them ideal for the task.
High-Quality Barcodes: When it comes to barcodes, precision and clarity are paramount. Thermal printing excels in producing sharp and reliable barcodes. It is essential for industries reliant on accurate barcode scanning, such as inventory management and logistics.
These labels include essential information such as ingredient lists, nutritional facts, batch numbers, expiration dates, and branding. The printers ability to produce long-lasting, smudge-resistant labels ensures that baked goods remain well-identified, compliant with regulatory requirements, and visually appealing to customers, contributing to efficient and attractive product packaging.
This printing offers sustainability benefits through reduced paper waste, longer-lasting labels, energy efficiency, and the availability of eco-friendly ribbon options. Unlike some traditional printing methods, it minimizes chemical waste due to its reliance on wax or resin-based inks. These aspects collectively make thermal transfer printing a choice that aligns with environmental consciousness, promoting resource efficiency and reduced environmental impact.